A portable, hand-held data terminal of modular structure includes a base module with a keyboard and a display screen. A data collection and communications module includes a stacked arrangement of a communications interface main circuit board, a radio and a laser scanner assembly which are housed in a...http://www.google.com.au/patents/US5313053?utm_source=gb-gplus-sharePatent US5313053 - Laser scanner module having integral interfacing with hand-held data capture terminal
